<!DOCTYPE html>
<html>
<head>
  <title>Bootstrap Examples</title>
  <link rel="stylesheet" href="css/bootstrap.min.css">
  <script src="js/jquery.min.js"></script>
  <script src="js/bootstrap.min.js"></script>
</head>

<body>
  <div class="container-fluid">
    <button type="button" class="btn btn-default">button</button>
    <button type="button" class="btn btn-sm btn-danger">button</button>
    <a class="btn btn-sm btn-default" href="#" role="button">button</a>
  </div>
</body>
</html>